function SpotLight(hex, intensity, distance, angle, exponent, decay) {
  THREE.SpotLight.call(this, hex, intensity, distance, angle, exponent, decay)
}

SpotLight.prototype = Object.create(THREE.SpotLight.prototype)
SpotLight.prototype.update = update

function update()  {
  for (var i = 0; i < this.children.length; i++) {
    this.children[i].update()
  }
}
